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kolbaska11 [484]
3 years ago
13

A new ride being built at an amusement park includes a vertical drop of 71.6 meters. Starting from rest, the ride vertically dro

ps that distance before the track curves forward. If the velocity at the bottom of the drop is 10.0 m/s and the mass of the cart and passengers is 3.5 x 104 kg, how much potential energy was converted into thermal energy (heat)?
2.3 x 107 J
2.6 x 107 J
4.3 x 107 J
6.7 x 107 J
Physics
1 answer:
Allisa [31]3 years ago
3 0

Answer: 2.6x107

Explanation:

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A roller coaster car is going over the top of a 18-m-radius circular rise. at the top of the hill, the passengers "feel light,"
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3 years ago
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Holding onto a tow rope moving parallel to a frictionless ski slope, a 70.1 kg skier is pulled up the slope, which is at an angl
lara [203]

Answer:

given,

mass of the skier = 70.1 Kg

angle with horizontal, θ = 8.6°

magnitude of the force,F = ?

a) Applying newton's second law

   m g sin\theta - F_{rope} = ma

 velocity is constant, a = 0

   m g sin\theta - F_{rope} =0

   F_{rope} = m g sin\theta

   F_{rope} = 70.1\times 9.8\times sin 8.6^0

  F_{rope}= 102.73\ N

b) now, when acceleration, a = 0.135 m/s²

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   F_{rope} = m g sin\theta+ma

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7 0
3 years ago
A pendulum is raised to a height of 0.3m above its lowest point and released. What is the velocity of the pendulum at its lowest
enyata [817]

Answer:

v = 2,425 m / s

Explanation:

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3 0
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forsale [732]

Explanation:

Mirrors consist of reflecting surfaces that reflect light.

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The direction of the reflected ray is determined by the law of reflection:

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A plane mirror is a type of mirror consisting of a straight surface. As a result, light incident perpendicular to the surface is reflected back exactly in the opposite direction.

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3 0
3 years ago
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